申请人:EASTMAN KODAK COMPANY
公开号:EP0492533A1
公开(公告)日:1992-07-01
A magenta dye-forming coupler for photographic material is disclosed. The coupler is a polymer derived from a monomer having the formula:
wherein R₁ represents hydrogen or a substituent,
X represents hydrogen or a group capable of being released by a coupling reaction with an oxidized aromatic primary amine developing agent,
Z represents the atoms necessary to complete a heterocyclic ring,
L represents a divalent linking group,
A represents -CONH-, -COO-, -O-, -OOC-, -NHCO-, -NHCONH-, -NHSO₂-, or a substituted or unsubstituted phenylene group,
D represents -O-, -NR''-, or -CONR''-,
R represents a substituted or unsubstituted aliphatic or a substituted or unsubstituted aromatic substituent, having at least 6 carbon atoms,
R' represents H, substituted or unsubstituted lower alkyl of from 1 to 4 carbon atoms, carboxyl, or halogen, and
R'' represents substituted or unsubstituted: alkyl, aryl, or acetyl.
本发明公开了一种用于感光材料的品红色染料形成耦合剂。该耦合剂是一种聚合物,由具有以下式子的单体衍生而成:
其中 R₁ 代表氢或取代基、
X 代表氢或可通过与氧化芳香族伯胺显影剂的偶联反应释放的基团、
Z 代表完成杂环所需的原子、
L 代表二价连接基团、
A 代表-CONH-、-COO-、-O-、-OOC-、-NHCO-、-NHCONH-、-NHSO₂- 或取代或未取代的亚苯基、
D 代表-O-、-NR''-或-CONR''-、
R 代表取代或未取代的脂肪族或取代或未取代的芳香族取代基,至少具有 6 个碳原子、
R' 代表 H、1 至 4 个碳原子的取代或未取代的低级烷基、羧基或卤素,以及
R'' 代表取代或未取代的烷基、芳基或乙酰基。